Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Polymer Name
- Material Type
- MODIFIED PTFE
- Technologies
- Product Families
Features & Benefits
- Materials Features
- Product Highlights
Parts and shapes made of modified PTFE can be assembled by heat welding and shaped by thermoforming. They can be joined without adhesives using moderate pressure in an oven, developing bonds with strength approaching that of the parts themselves. Welded sections can be subsequently thermoformed with no significant loss of strength. One of the simplest, most economical applications for modified PTFE is to make rectangular bags. A thin sheet can be folded over itself and heat sealed along two or three sides to make a bag for storing liquids and materials which must be protected from potential contaminants, e.g. in environmental or pharmaceutical sampling applications.
Applications & Uses
- Applications
- Plastics & Elastomers Processing Methods
- Comparison
Compared to standard PTFE modified PTFE displays remarkably enhanced performance characteristics. For example, the tensile strength and elongation of ordinary PTFE are 1500 - 2000 psi and 100 - 200 %, whereas modified PTFE’s tensile strength is 4500 psi and its elongation at break is 500%. However, high voltage dielectric strength is where modified PTFE stands out: it is rated at 5200 volts per mil (at 1 mil), whereas standard PTFE is rated at only 500 volts per mil. In thicker sections, the high voltage dielectric strength decreases, but not dramatically; Fluoro-Plastics offers modified PTFE which has been tested in 2.2, 3, 5, 8 and 10 mil thickness. The high voltage dielectric strength varied from slightly over 3,000 volts per mil at 2.2 mils to slightly over 2,000 volts per mil at 10 mils.
Properties
- Physical Form
- Typical Properties
| Value | Units | Test Method / Conditions | |
| Thickness | 0.002 | " | - |
| Width | 12.0 | " | - |
| Length | min. 5 | LB Roll | - |
| Specification Sheet | ASTMD 4894 TY 3 | - | - |
| Tensile Strength | 4500.0 | psi | - |
| Elongation at Break | ±450 | % | - |
| Dielectric Strength (Breakdown Voltage) | 5200.0 | Volts/mil | - |
Packaging & Availability
- Packaging Type
- Availability
Fluoro-Plastics offers modified PTFE in skived sheets and rolls from one mil thick up to 0.125 inches thick, up to 48 inches wide, or slit to order. All rolls are packaged on a three-inch cardboard core, or a three-inch PVC core, to customer request.